iPerfect Mini DisplayPort (3 in 1) Thunderbolt to HDMI/DVI/VGA Cable Adapter for Apple Mac Book MacBook Pro MacBook Air Mac mini Microsoft Surface Pro 2 3 Laptop You can connect the display to one of HDMI/DVI/VGA output ports. Only one of the 3 outputs could be used at a time, you cannot use all of them simultaneously. The adapter seamlessly connect Mac Book, Mac Book Pro, or Mac Book Air with a Mini display port to high definition displays. Support HDMI/DVI/VGA output with the max resolution of 1920x1080p@60Hz, 225MHz/2.25Gbps per channel (6.75Gbps all channel), 12bit per channel (36bit all channel) deep color. Support audio output. When connecting the iMac (Late 2009) and Mac Book Pro (Mid 2010) to HDMI display, please set "Sound" on the dialog box of "System Preferences" to get audio output.